194471 has 2 divisors, whose sum is σ = 194472. Its totient is φ = 194470.

The previous prime is 194443. The next prime is 194479. The reversal of 194471 is 174491.

It is a strong prime.

It is an emirp because it is prime and its reverse (174491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194471 - 2¹⁰ = 193447 is a prime.

It is a super-3 number, since 3×194471³ = 22064078651847333, which contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97235 + 97236.

It is an arithmetic number, because the mean of its divisors is an integer number (97236).

194471 is a Friedman number, since it can be written as (7*(4-1))^4-9-1, using all its digits and the basic arithmetic operations.

2¹⁹⁴⁴⁷¹ is an apocalyptic number.

194471 is a deficient number, since it is larger than the sum of its proper divisors (1).

194471 is an equidigital number, since it uses as much as digits as its factorization.

194471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 194471 is about 440.9886619858. The cubic root of 194471 is about 57.9364146610.

The spelling of 194471 in words is "one hundred ninety-four thousand, four hundred seventy-one".